Re: [Xen-devel] Xen 4.3 development update

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Pasi Kärkkäinen writes ("Re: [Xen-devel] Xen 4.3 development update"):
>  * xl PVUSB pass-through for both PV and HVM guests
>    owner: ? 
>    status: ? 
>    - xm/xend supports PVUSB pass-through to guests with PVUSB drivers (both 
> PV and HVM guests).
>    - port the xm/xend functionality to xl.
>    - this PVUSB feature does not require support or emulation from Qemu.
>    - upstream the Linux frontend/backend drivers. Current work-in-progress 
> versions are in Konrad's git tree.
>    - James Harper's GPLPV drivers for Windows include PVUSB frontend drivers.

Right.  I think upstreaming the frontend/backend is critical for
this.  Is this related to the usb-over-ip support that I found a few
years ago in linux-staging ?  At the time that was very buggy.

>  * xl USB pass-through for HVM guests using Qemu USB emulation
>    owner: ? 
>    status: ?
>    - xm/xend with qemu-traditional supports USB passthrough to HVM guests 
> using the Qemu emulated USB controller.
>    - port the xm/xend functionality to xl.
>    - make sure USB passthrough with xl works with both qemu-traditional and 
> qemu-upstream.
>    - The HVM guest does not need any special drivers for this feature.

I think this is just a matter of plumbing in libxl (presumably, now,
plumbing to qemu-upstream).

Ian.

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